Reply To: Logo width
There’s an area in the Options, Style tab for custom CSS. If you change the header.php file, you risk it being overwritten by future theme updates.
You can try pasting the following into the Custom CSS area and changing the numbers to position and give space to your logo:
padding-top: 17px !important;
padding: 20px 0 0 60px !important;
min-height: 60px !important;